MICchip MIC5365-3.3YC5-TR: Powering Modern Portable Electronics with Ultra-Low Quiescent Current

In the rapidly evolving world of portable and battery-powered devices, power management is paramount. The MICchip MIC5365-3.3YC5-TR stands out as a critical component, a 300 mA low-dropout (LDO) linear voltage regulator engineered for exceptional efficiency and miniaturization. This device delivers a fixed 3.3V output from input voltages ranging from 2.7V to 5.5V, making it an ideal power solution for a vast array of applications, from IoT sensors and wearable technology to smartphones and medical devices.

A defining characteristic of the MIC5365 is its remarkably low quiescent current (IQ), typically a mere 17 µA. This feature is a game-changer for extending battery life. Unlike traditional regulators that waste significant current even when idle, the MIC5365's ultra-low IQ ensures that a minimal amount of power is drawn when the load is light or in standby mode. This translates directly to longer operational time between charges for end-user products.

Beyond its low IQ, this LDO excels in performance metrics crucial for sensitive electronics. It offers excellent transient response, swiftly reacting to sudden changes in load current to maintain a stable output voltage. Furthermore, it boasts a very low dropout voltage—typically 115 mV at 150 mA load—allowing it to continue regulating effectively even when the input voltage dips very close to the output level, thereby maximizing the usable energy from a draining battery. The IC is also designed for simplicity, requiring only a small 1.0 µF ceramic output capacitor for stability, which reduces the total solution size and cost.

Housed in a space-saving 1 mm x 1 mm WCSP-4 package, the MIC5365-3.3YC5-TR addresses the pressing need for board space conservation in modern compact designs. Its full feature set, including built-in current limit and thermal shutdown protection, provides a robust and reliable power management solution in an incredibly small footprint.

ICGOODFIND

The MICchip MIC5365-3.3YC5-TR is an optimal choice for designers prioritizing longevity, size, and performance. Its combination of ultra-low quiescent current, high PSRR, and miniature packaging makes it a superior LDO for powering the next generation of energy-conscious portable electronics.

Keywords:

Low Quiescent Current (IQ)

LDO Voltage Regulator

300 mA Output

Battery-Powered Devices

Miniature Packaging